Yes, that's quite true. It's also a real number, and a negative number.
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To get the vertex of the parabola we proceed as follows;
y=-7(x-4)^2-5
The above can be written as:
y=-7x^2+56x-117
The values of a,b and c are:
a=-7, b=56 and c=-117
x=-b/(2a)
x=-56/(-7*2)=4
but;
y=-7x^2+56x-117
y=-7(4)^2+56(4)-117
y=-5
Thus;
x=4 and y=-5
The vertex will be at point (4,-5)
Step-by-step explanation:
y-Intercept = (0 , -5)
Slope / m = -4
y - y1 = m(x - x1)
y + 5 = -4(x - 0)
y = -4x - 5 → Equation
Answer:
x = 180 - (37 + 53)
Step-by-step explanation:
x + 37 + 53 = 180
x = 180 - (37 + 53)
All of the angles have to equal 180 due to the supplementary angles thm
Paul surely charges 75 dollars, and then he adds 40 dollars per hours. This means that the expression for the money he asks is
where 
is the amount of money and 
is the number of hours.
Since 
can be at most 8, this is the case that generates the highest money, so if we plug 
we have
